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...ays > be cast away. If you want mod information, then I suggest using the > aliasanalysis interface to get mod ref info for a call. > > -Chris > > http://nondot.org/sabre > http://llvm.org > > On Aug 8, 2007, at 12:07 AM, "Ryan M. Lefever" <lefever at crhc.uiuc.edu> > wrote: > > >>How is c's const keyword translated when compiling c into llvm >>bytecode. >> I'm specifically interested in const pointer function arguments. >>Consider a function declared as follows in c: >> >>void f(const int...

...he relevant language standards. Note that if you declare a global as const that we do capture this in the ir - what specifically do you want? Please provide an example. -Chris http://nondot.org/sabre http://llvm.org On Aug 14, 2007, at 11:58 PM, "Ryan M. Lefever" <lefever at crhc.uiuc.edu> wrote: > I don't mean to be a pain, but I was thinking about this a bit more. > Does gcc ignore the const keyword? If not, why has LLVM chosen to > deviate from gcc with respect to the const keyword? If so, then why > do > we bother using const in LLVM API code?...

Does llvm-gcc support the -fPIC option? I am using LLVM on both 32 bit linux and 64 bit linux, if that matters. Regards, Ryan -- Ryan M. Lefever [http://www.crhc.uiuc.edu/~lefever/index.html]

...ds to get register allocated the same way (i.e, a value that is duplicated in the two threads gets mapped to the same register/memory location). Is there a cleaner way to this other than to make all the shared variables global? Thanks in advance for any advice. -- Francesco Spadini http://www.crhc.uiuc.edu/~spadini spadini at crhc.uiuc.edu "The universe is full of magical things, patiently waiting for our wits to grow sharper." - Eden Phillpots

...king on this currently. If no one is on it, does anyone have an idea of how nasty this would be to do? I'd like to have LLVM output to a new ISA, it'd be great if all I had to do was proxy system calls like read and write in my architectural simulator. -- Francesco Spadini http://www.crhc.uiuc.edu/~spadini spadini at crhc.uiuc.edu "The universe is full of magical things, patiently waiting for our wits to grow sharper." - Eden Phillpots

...eserved on the llvm ir, because const can always be cast away. If you want mod information, then I suggest using the aliasanalysis interface to get mod ref info for a call. -Chris http://nondot.org/sabre http://llvm.org On Aug 8, 2007, at 12:07 AM, "Ryan M. Lefever" <lefever at crhc.uiuc.edu> wrote: > How is c's const keyword translated when compiling c into llvm > bytecode. > I'm specifically interested in const pointer function arguments. > Consider a function declared as follows in c: > > void f(const int* arg); > > When I examine f...

...if you declare a global as const that we do capture this in > the ir - what specifically do you want? Please provide an example. > > -Chris > > http://nondot.org/sabre > http://llvm.org > > On Aug 14, 2007, at 11:58 PM, "Ryan M. Lefever" > <lefever at crhc.uiuc.edu> wrote: > > >>I don't mean to be a pain, but I was thinking about this a bit more. >>Does gcc ignore the const keyword? If not, why has LLVM chosen to >>deviate from gcc with respect to the const keyword? If so, then why >>do >>we bother usi...

This has been reported. http://llvm.org/bugs/show_bug.cgi?id=1317 On 4/10/07, Ryan M. Lefever <lefever at crhc.uiuc.edu> wrote: > > I checked out llvm from cvs & llvm-gcc from svn last night and again > tonight. Each time they compiled and installed fine. After installing > them, I recompiled compiler transforms I had written for opt. opt seems > to load the my transform libraries f...

Hi Eli, On 07/27/2011 04:59 PM, Eli Friedman wrote: > On Wed, Jul 27, 2011 at 2:28 PM, Matt Johnson > <johnso87 at crhc.illinois.edu> wrote: >> Hi All, >> I'm writing a backend for a target which only supports 4-byte, >> 4-byte-aligned loads and stores. I custom-lower all {*EXT}LOAD and >> STORE nodes in TargetISelLowering.cpp to take advantage of all alignment >> informat...

On Wed, Jul 27, 2011 at 3:50 PM, Matt Johnson <johnso87 at crhc.illinois.edu> wrote: > Hi Eli, > > On 07/27/2011 04:59 PM, Eli Friedman wrote: >> >> On Wed, Jul 27, 2011 at 2:28 PM, Matt Johnson >> <johnso87 at crhc.illinois.edu>  wrote: >>> >>> Hi All, >>>     I'm writing a backend for a target...

How is c's const keyword translated when compiling c into llvm bytecode. I'm specifically interested in const pointer function arguments. Consider a function declared as follows in c: void f(const int* arg); When I examine f in llvm bytecode, how can I tell that arg is a pointer, whose contents can only be read, not written. Regards, Ryan

...can always > be cast away. If you want mod information, then I suggest using the > aliasanalysis interface to get mod ref info for a call. > > -Chris > > http://nondot.org/sabre > http://llvm.org > > On Aug 8, 2007, at 12:07 AM, "Ryan M. Lefever" <lefever at crhc.uiuc.edu> > wrote: > > > How is c's const keyword translated when compiling c into llvm > > bytecode. > > I'm specifically interested in const pointer function arguments. > > Consider a function declared as follows in c: > > > > void f(const int...

Yup! -bw On Nov 3, 2008, at 7:39 PM, Ryan M. Lefever wrote: > Does llvm-gcc support the -fPIC option? I am using LLVM on both 32 > bit > linux and 64 bit linux, if that matters. > > Regards, > Ryan > > -- > Ryan M. Lefever [http://www.crhc.uiuc.edu/~lefever/index.html] > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

Is there a facility with which we may automagically create a "fake" exit node, one that is the target of all BasicBlocks ending in return. This would be very helpful to IP dataflow analysis... Dave

...t appear to work... getCalledFunction() returns 0 Dave On Fri, 6 Dec 2002, Vikram Adve wrote: > P.S. I have also updated the CSIL tree. Just check out > TarjanSCCIterator.h. > > --Vikram > http://www.cs.uiuc.edu/~vadve > > > > From: David Crowe <dcrowe at tremor.crhc.uiuc.edu> > > Subject: [LLVMbugs] Re: [LLVMdev] Tarjan+function_ptrs == trouble ? > > Sender: llvmbugs-admin at cs.uiuc.edu > > Date: Fri, 6 Dec 2002 00:54:41 -0600 (CST) > > > > Thanks, > > > > I've been through the documentation, and if I visit m...

...sertion failed: Index < Links.size() && "Link index is out of range!", file ../../../include/llvm/Analysis/DSNode.h, line 120 Am I doing something wrong, or is this analysis under development still? _________________________________________________ Francesco Spadini http://www.crhc.uiuc.edu/~spadini spadini at crhc.uiuc.edu "Don't worry about people stealing your ideas. If your ideas are any good you'll have to ram them down people's throats." - Howard Aiken _________________________________________________

...lls (esp. the memory and string manipulation functions). I think I'll try playing around with glibc for a bit. At worst I'll end up adding a compatibility mode and hand-code some of the common simple ones (memcpy, memset, etc.). Thanks for your help. -- Francesco Spadini http://www.crhc.uiuc.edu/~spadini spadini at crhc.uiuc.edu "The universe is full of magical things, patiently waiting for our wits to grow sharper." - Eden Phillpots

...s mailing-list: > ------------------------------------------------------------------------ > > Subject: > Re: using dsa > From: > John Criswell <criswell at cs.uiuc.edu> > Date: > Tue, 06 Mar 2007 09:53:43 -0600 > To: > "Ryan M. Lefever" <lefever at crhc.uiuc.edu> > > To: > "Ryan M. Lefever" <lefever at crhc.uiuc.edu> > > > Ryan M. Lefever wrote: >> >> I tried using the -r release_19 flag (as was originally >> suggested), but that version of LLVM fails to compile. I get the >> following...

On Tue, Jun 24, 2008 at 2:03 AM, Ryan M. Lefever <lefever at crhc.uiuc.edu> wrote: > My problem is that if I use the -g option in lines 1 and 2, then when I > run llvm-ld in line 5, it complains that there are undefined references > to .LlableX. -g + optimization is unsupported at the moment. Off the top of my head, I know that global DCE and inlini...

...523617C1CE; Fri, 8 Nov 2002 18:25:04 -0500 (EST) > Received: from localhost (localhost [127.0.0.1]) > by nondot.org (Postfix) with ESMTP > id 488FD24D019; Fri, 8 Nov 2002 17:25:04 -0600 (CST) > From: Chris Lattner <sabre at nondot.org> > To: David Crowe <dcrowe at tremor.crhc.uiuc.edu> > Cc: llvmdev at cs.uiuc.edu > In-Reply-To: <Pine.LNX.4.33.0211081707090.11485-100000 at tremor.crhc.uiuc.edu> > Message-ID: <Pine.LNX.4.44.0211081721560.18180-100000 at nondot.org> > MIME-Version: 1.0 > Subject: [LLVMdev] Iterating on the DSGraph... > Sen...